mirror of https://github.com/k3s-io/k3s
99 lines
2.5 KiB
Go
99 lines
2.5 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package election
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import (
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"testing"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/tools"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/watch"
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"github.com/coreos/go-etcd/etcd"
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)
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func TestEtcdMasterOther(t *testing.T) {
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path := "foo"
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etcd := tools.MakeFakeEtcdClient(t)
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etcd.Set(path, "baz", 0)
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master := NewEtcdMasterElector(etcd)
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w := master.Elect(path, "bar")
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result := <-w.ResultChan()
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if result.Type != watch.Modified || result.Object.(string) != "baz" {
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t.Errorf("unexpected event: %#v", result)
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}
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w.Stop()
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}
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func TestEtcdMasterNoOther(t *testing.T) {
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path := "foo"
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e := tools.MakeFakeEtcdClient(t)
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e.TestIndex = true
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e.Data["foo"] = tools.EtcdResponseWithError{
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R: &etcd.Response{
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Node: nil,
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},
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E: &etcd.EtcdError{
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ErrorCode: tools.EtcdErrorCodeNotFound,
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},
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}
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master := NewEtcdMasterElector(e)
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w := master.Elect(path, "bar")
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result := <-w.ResultChan()
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if result.Type != watch.Modified || result.Object.(string) != "bar" {
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t.Errorf("unexpected event: %#v", result)
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}
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w.Stop()
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}
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func TestEtcdMasterNoOtherThenConflict(t *testing.T) {
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path := "foo"
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e := tools.MakeFakeEtcdClient(t)
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e.TestIndex = true
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// Ok, so we set up a chain of responses from etcd:
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// 1) Nothing there
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// 2) conflict (someone else wrote)
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// 3) new value (the data they wrote)
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empty := tools.EtcdResponseWithError{
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R: &etcd.Response{
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Node: nil,
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},
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E: &etcd.EtcdError{
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ErrorCode: tools.EtcdErrorCodeNotFound,
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},
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}
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empty.N = &tools.EtcdResponseWithError{
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R: &etcd.Response{},
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E: &etcd.EtcdError{
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ErrorCode: tools.EtcdErrorCodeNodeExist,
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},
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}
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empty.N.N = &tools.EtcdResponseWithError{
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R: &etcd.Response{
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Node: &etcd.Node{
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Value: "baz",
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},
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},
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}
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e.Data["foo"] = empty
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master := NewEtcdMasterElector(e)
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w := master.Elect(path, "bar")
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result := <-w.ResultChan()
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if result.Type != watch.Modified || result.Object.(string) != "bar" {
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t.Errorf("unexpected event: %#v", result)
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}
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w.Stop()
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}
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